Instrument for writing characters on advertising boards



A. RADTKE Oct. 15,1929.

INSTRUIENT FOR WRITING CHARACTERS ON ADVERTISING BOARDS Filed Sept. 20,192"! 9 @n%% II HJ MHMH I //7 venzor'x Patented Oct. 15, 1929 Alli BERTRADTKE, OF ERKENSCHWICK, NEAR RECKLINGI'IAUSEN, GERMANY INSTRUMENT FORWRITING CHARACTERS ON ADVERTISING BOARDS Application filed September 20,1927, Serial No. 220,724, and in Germany September 28, 1926.

hen writing the inscriptions on advertising boards, for instanceplacards for shopwindows, the contours of the characters, and eventuallythe lines for the light and shade or for cut-out portions, which areparallel to the contours are first drawn with black chalk, whereupon theportions of the surface between these contour-lines are paint-ed bymeans of a brush. The tracing of the contours requires much time.

Qhis invention relates to an instrument by means of which all the linesfor the characters can be traced at the same time. The instrumentconsists of a plate with a handle and on which several, for instancefour holders are fixed side by side, which are designed to hold pencilsand are all movable in opposition to springs in longitudinal directionso that, even if the pencils should not wear uniiormly, all thepencil-points will be adjusted so as to be in contact with the surfacebeing written upon. The holders are further oscillatable and adapted tobe secured in any adjusted position on the plate and removably fixed sothat they can be interchanged.

A form of construction of the writing instrument is shown, by way ofexample, in the accompanying drawing.

Fig. 1 shows an elevation of the instrument.

Fig. 2 is a rear view of Fig. 1, the leads being inserted and one of theholders being shown in section.

Fig. 3 is a sicleelevation.

Figs. 4 to 6 show several characters written with the instrument anddesigned to illustrate the Writing.

On a plate 5 having a handle a four sleeves 0, (Z, c, f are pivotallyfixed side by side by means of screws 9. To secure the sleeves inposition clamping screws h, which traverse curved longitudinal slots 2'of plate 7), are provided and in each sleeve a pencil-holder 7c istelescoped. A spiral spring on in the sleeve bears against the top-endof the telescoped holder is. A tappet n projecting through alongitudinal slot 0 of the sleeve limits the shifting movement of thetelescoped holder k. Each telescoped holder it ends in a slit-sleeve son which sits a clamp- Fig. 4 s Fig. 5 t

hows a traced character. he same character fiiushed.

When only three lines are to be traced, as .tor instance for-writing thecharacters shown in Fig. (3,

it is necessary to remove either one of the pencils 3? from thecorresponding holder 76 from the corresponding sleeve or one of thesleeves 0, (Z, c or 7 from the head.

I claim 1. An instrument for writing characters on advertising boards,.placards and the like, comprislng 1n combination an elongated plate havtending longitudinally thereof, a handle on ing a plurality of curvedslots 6X- said plate, a plurality of sleeves and means for oscillatablymounting them on saidplate,

clamping ersing said curved slots of said plate, a

SCT'GlVS one 01 each sleeve and EYZLV- pencil-holder in each of saidsleeves adjustable longitudinally thereof, and a spring in each sleeveacting upon said pencil-holders.

2. In an instrument as specified in claim 1,

said sleeves being arranged'side by side in the same plane andadJustably and removably mounted on said plate and each having alongitudinal slot near its lower end, said pencil-holders having alongitudinal slit therein and one being telcscoped in each sleeve, a

tappet near the top end of each slit holder and engaging with thelongitudinal slot of the corresponding sleeve, a ring on said slitholder, and a pencil in the slit portion of each telescoped part.

In testi mony whereof I a'flix my signature.

ALBERT RADTKE.

